Jack Merritt, 25, was at prisoner rehabilitation event also attended by terror suspect; video footage shows men with fire extinguisher, tusk, battling with attacker

Following terror attack, former counterterrorism official warns criminal justice system 'playing Russian roulette with lives'; minister vows swift government review of laws

Jonathan Xie of New Jersey said he would 'shoot everybody' at event, blow up Trump Tower; is charged with attempting to provide material support to terror group

A 2018 Supreme Court decision can force federal prosecutors to hand off such cases to states ill-equipped to deal with them

Mark Domingo, 26, was arrested Friday as he planned to bomb a white supremacist rally in California, and contemplated attacking Jewish targets and churches

Officials say former infantryman Mark Domingo planned to bomb a white supremacist rally in revenge for New Zealand mosque attacks; also sought Jewish targets